Apparatus for duplicating or multiplying sound-records.



N0. 688,92I. Patented Dob. l7, mum; v e. BE-TTINI.

APPARATUS FUB DUPL IGATING 0R MULTIPLYING SOUND BEQO RDS (Application filed Apr. 8, 1897.)

"2 Sheets-Sheet I.

(No Model.)

VINVENTOR HB'Y J 1 ERS co, PNOI'GLITHOU WASMINGYON n z.

N0. 688,92l. Patented Dec. l7, I9Dl.

G. BETTINI. APPARATUS FOR DUPLIGATING 0R MULTIPLYING SOUND RECORDS.

(Application filed Apr. 3, 1897,) 3

(No llodel.) 2 Sheets-Sheet 2.

. INVENTOR in; ATTORNEY resents the base of the instrument.

NITED STATES PATENT Fries.

GIANNI BETTINI, OF NEW YORK, N. Y., ASSIGNOR TO HIMSELF AND EDWARD N. DIOKERSON, OF NEW YORK, N. Y.

APPARATUS FOR DUPLICATING OR MU LTIPLYING SOUND-RECORDS.

SPECIFICATION forming part of Letters Patent No. 688,921, dated December 7, 1901- Applioation filed April 3,1897. Serial No. 630,542. (No model.)

To (225 whom it may concern.-

Be it known that I, GIANNI BETTINI, of the city, county, and State of New York, have invented a new and useful Improvement in Apparatusfor D upli eating or Multiplying Sound- Records, of which the following is a specification.

My invention relates to an apparatus for reproducing the record of a master-cylinder on a single or a plurality of phonogram-blanks.

In the .drawings I have illustrated an apparatus designed to carry out my invention, in which- Figure 1 is a plan view. tion along line 2 2 of Fig. 1. tail side elevation View of one of the cylinders and supporting parts, partly in section. Fig. 4 is a detail elevation View, partly in section, of a modification of the means for making the record; and Fig. 5 is a view similar to Fig. 4, but showing another modification.

Like numerals of reference refer to like Fig. 2 is a see- Fig. 3 is a departs throughout the several views of the drawings.

Referring to the drawings in detail, 1 rep- In stand ards 2 are journaled a series of shafts 3, carrying sleeves 4, on one end of each of which is an arm 5, havinga spring'connection 6, with a half-round threaded socket '7 engaging a correspondiugly-threaded shaft 8. The shafts 8 are suitably journaled, as in standards 9, and are provided at one end with beveled gears 10 and at the other end support a mandrel 11, on which is mounted a cylinder 12, of suitable material, adapted to receive a sound-record. The shafts 8 at the end opposite to the one providedwith the beveled gear have a recess 13, in which engages a correspondingly-shaped bearing-point 14 on the end of an arm 15, journaled in standards 16 on the base 1. The arms 15 are each provided below their journaled points with a pin 17, engaging a catch 18, which is kept in engagement therewithby a spring 19 when in its normal position. These arms 15, it will be seen, constitute a removable journal for one end of a shaft 8 to permit of placing and withdrawing the cylinders in and out of operative position.

One of the series of cylinders shown, and

which I will designate withthe numeral 20, is a master-cylinder-that is, it is a cylinder which is provided with the sound -record which it is desired to copy. multiply the sound-record upon thiscylinder, I suitably mount upon the sleeve 4,which is appurtenant to the shaft 8, carrying the master-cylinder 20, any desired form of electrical transmitter of sound-waves, as an ordinary microphone-transmitter 45, carried on an arm 46, one end of which'is pivotally secured to the sleeve 4, the microphone being counterbalanced by means of an adjustable counterbalance consisting of a threaded rod 47, upon which screws a weight 48. The yibrating diaphragm of the microphone-transmitter is provided with a stylus designed to follow the sound-record line of said mastercylinder. This transmitter is in circuit with a source of electricity, which is here represented in conventional manner as a battery 21, and fluctuations in the current caused by the vibrations of the diaphragm of the transmitter are utilized to effect corresponding movements in the parts carrying the stylus in contact with each of the cylinders upon which the record of the master-cylinder is to be duplicated. In the form of apparatus here illustrating the invention I have shown these parts as consisting of a solenoid 22, upon whose core 23 is carried the cutting-point or stylus 24.

Depending from each of the sleeves 4 (excepting, of course, the one appurtenant to the master-cylinder) is an arm 25, whose end is provided with a roller 26, running on a track 27. These arms 25 support the solenoids 22. Each arm is provided with a pivoted arm 28, upon Whose outer end is secured the core 23, carrying the stylus mounted on the arm 28 and being held to contact with the record-surface by means of a spring 29, held in position by a stem 30, secured to said arm 28, and a stem 31 upon the arm 25, adjustment of this spring being effected by any desired means, as by collar and screw 32.

For the pupose of Withdrawing the solenoid and its core carrying the stylus out of position, so as to permit of the removal or placing of a cylinder into position, I have shown the track 27 as carried on pivoted arms 33,

To duplicate or which are maintained either in or out of normal position by springs 34, bearing upon different surfaces of said arms 36. Secured to the core of the solenoid is a transverse arm 37, upon each of whose ends is a recessed screw 38, adapted to receive the end of the stem 55, said screw being for. the purpose ofadjusting the tension of the springs 36, secured to the desired adjustment by nuts 39. 40 represents two posts whose upper ends are connected by an arm 41, provided with an opening at its center portion, through which projects the upper end of the core, whereby the said core is guided to prevent lateral vibration.

In Fig. 5 I have shown another modification in which the core of the solenoid has secured to it an arm 42, each end of said arm being provided with an opening through which passes a post 43, said post being provided with springs 35, as in the construction shown in Fig. 4, which springs are adjustable by means of a collar and screw 32. 44 represents the line-wire of the circuit, in which are connected in series the several solenoids of the system.-

The operation of the device will now be apparent. Assuming that all the cylinders are in position, the stylus of the transmitter is placed in the groove constituting the soundrecord of the master-cylinder and the instrument set in operation by driving the shaft 49, as by pulley 50, from any suitable source of energy, whereby the shafts 8 are rotated by the engagement of the beveled gears 10 with beveled gears 51. The half-round threaded portion 7 being in engagementwith the shafts 8, the sleeves 4 are moved in unison longitudinally of the record-cylinders, the vibrations of the transmitter being reproduced in all the cores of the several solenoids which carry the cutting-points or stylus, hence making on each of the cylinders a faithful duplicate of the soundrecord of the mastercylinder.

. When the record is completed, the catch 18 is withdrawn from the engaging position with the arm 17 and the arm 15 tilted back, so as to permit of the withdrawal of the cylinders, and the rail 27 is depressed, so as to bring the stylus out of engagement with the cylinders. The half-round threaded portion 7 is depressed out of engagement with the threaded shaft 8 and the sleeves drawn back to their original position, where the part 7 engages again the shaft 8, the track being again raised after a new cylinderhas been placed inposition,when the operation is repeated.

What I claim as new is- 1. In an apparatus for duplicating or mul-.

said arm at the other end thereof and means consisting of pivoted and spring-pressed arms for moving said track to remove said stylus from the blank.

2. In an apparatus for duplicating or multiplying sound-records, the combination of a master-record, a transmitter coacting therewith, a phonogram-blank, a stylus located in close proximity to said blank, a coil adapted to operate said stylus and which iscontrolled from the transmitter coacting with the master-cylinder, an arm carrying said coil, said arm being pivoted at one end, a track for supporting said arm at the other end thereof, and means for permitting of a relative movement betweensaid track and the blank to remove the stylus therefrom.

3. The combination with a phonogramblank, of a stylus located in proximity to said blank, a coil adapted to operate said stylus, an arm carrying said coil, said arm being pivoted at one end, a track for supporting said arm at the other end thereof, and means consisting of pivoted and spring-pressed arms for moving said track to remove said stylus from the blank.

In testimony whereof I have signed my GIANNI BETTINI.

\Vitness es:

ERNST HOPKINSON, S. ROBERTS. 

